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The cumulative claim amounts incurred on a portfolio of motor insurance policies are as follows: Development Year Accident Year 0 1 2 3 2014 3,907 5,606 6,061 6,145 2015 4,831 7,319 7,470 2016 6,042 8,282 2017 7,061 The cumulative number of reported claims are as follows Development Year Accident Year 0 1 2 3 2014 435 469 528 534 2015 485 525 541 2016 509 558 2017 544 (i) (ii) Estimate the ultimate number of claims, for each accident year, using the chain-ladder technique. [4] Estimate the ultimate average incurred cost per claim, for each accident year, using the grossing-up method. (iii) Calculate the total reserve required, using the results from (i) and (ii), assuming that claims paid to date are 19,544. [5]